#2B73B8#2B73B8

#2B73B8 is a mid, vivid cyan. Relative luminance 0.162; OKLCH L 54.5% C 0.129 H 250.7°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#2B73B8
RGB	rgb(43, 115, 184)
HSL	hsl(209, 62%, 45%)
HSV	hsv(209, 77%, 72%)
CMYK	cmyk(76.6%, 37.5%, 0%, 27.8%)
CIE-LAB	lab(47.28, 2.02, -42.73)
CIE-LCH	lch(47.28, 42.78, 272.71°)
OKLab	oklab(54.53% -0.0426 -0.1218)
OKLCH	oklch(54.53% 0.129 250.7)
XYZ	xyz(15.7755, 16.2339, 47.6401)
Luminance	0.1624 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B73B8 #B8702B

analogous

#2BB8B7 #2B73B8 #2B2CB8

triadic

#2B73B8 #B82B73 #73B82B

tetradic

#2B73B8 #B72BB8 #B8702B #2CB82B

square

#2B73B8 #B72BB8 #B8702B #2CB82B

split-complementary

#2B73B8 #B82B2C #B8B72B

monochromatic

#143555 #1F5486 #2B73B8 #4B92D5 #7DB0E1

Accessibility & contrast

On white

4.94

#2B73B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#2B73B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B73B8

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B73B8	#FFFFFF	#000000	##FFFFFF
##2B73B8	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5377BB

Deuteranopia (green-blind)

#3D6AB7

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #2b73b8;
/* rgb */ color: rgb(43, 115, 184);
/* oklch */ color: oklch(54.5% 0.129 250.7);

Tailwind

colors: {
  custom: {
    50: '#789ace',
    500: '#2b73b8',
    950: '#000000',
  },
}

SCSS

$custom: #2b73b8;
$custom-light: #789ace;
$custom-dark: #000000;

JSON

{
  "hex": "#2b73b8",
  "rgb": {
    "r": 43,
    "g": 115,
    "b": 184
  },
  "hsl": {
    "h": 209.362,
    "s": 62.115,
    "l": 44.51
  },
  "oklch": {
    "l": 0.54525,
    "c": 0.12901,
    "h": 250.7
  },
  "luminance": 0.16236
}

Semantic roles & 50–950 ramp

primary

#2B73B8

secondary

#C99F76

accent

#9243E5

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2B73B8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →